基于多输出四端浮地零泛器的电流模式二阶滤波器  

Current-Mode Second-Order Filters Based on Multiple-Output FTFNs

作　　者：彭良玉[1] 何怡刚[2] 黄满池[1] 吴杰[2] 

机构地区：[1]湖南师范大学理学院,湖南长沙410081 [2]湖南大学电气与信息工程学院,湖南长沙410082

出　　处：《电路与系统学报》2002年第1期101-103,共3页Journal of Circuits and Systems

基　　金：国家自然科学基金资助项目(59707002);湖南省自然科学基金资助项目(98JJY2038)

摘　　要：本文提出了用多输出四端浮地零泛器( Four Terminal Floating Nullor)实现的电流模式二阶多功能滤波器结构,它由4个多输出四端浮地零泛器FTFNs,1个反向单位增益器, 6个接地电阻和2个接地电容组成,电路能同时实现陷波、高通、带通、低通电流转移函数。固有角频率ω0 与品质因素Q能实现正交调节,且有低的有源和无源灵敏度。A configuration for realizing current-mode second-order multifunctional filter using Multiple-Output four terminal floating nullors (FTFNs) is presented. The proposed filter consists of four multiple-output FTFNs and one negative unit-gain, six grounded resistors, two grounded capacitors. This circuit can simultaneously realize the notch, high-pass, band-pass, low-pass current transfer functions, The natural angular frequency ω0 and the quality factor Q of the circuit can be orthogonally tuned, and both its active and passive sensitivities are quite small.

关 键 词：多输出四端浮地零泛器 电流模式 二阶滤波器 

分 类 号：TN713[电子电信—电路与系统]